The Influence of Gold, Black Gold, and Digital Gold on Stock Market Portfolios. International Journal of Advanced Business Studies, [S. l.], v. 3, n. special issue, p. 28–42, 2025. DOI: 10.59857/IJABS.7856. Disponível em: https://www.besra-journals.net/index.php/ijabs/article/view/121. Acesso em: 22 may. 2026.